primer

noun

/ˈpraɪmə(r)/

/ˈpraɪmər/
[uncountable, countable] a type of paint that is put on wood, metal, etc. before it is painted to help the paint to stay on the surface底漆；底层涂料
/ˈpraɪmə(r)/

/ˈprɪmər/
[countable] (North American English) a book that contains basic instructions初级读本；入门书
- The President doesn't need a primer on national security.总统对于国家安全是不需要读入门书的。
/ˈpraɪmə(r)/

/ˈprɪmər/
[countable] (old-fashioned) a book for teaching children how to read, or containing basic facts about a school subject识字课本；启蒙读本

词源senses 2 to 3 late Middle English: from medieval Latin primarius (liber) ‘primary (book)’ and primarium (manuale) ‘primary (manual)’.

词汇	primer
释义	primer noun /ˈpraɪmə(r)/ /ˈpraɪmər/ [uncountable, countable] a type of paint that is put on wood, metal, etc. before it is painted to help the paint to stay on the surface底漆；底层涂料 /ˈpraɪmə(r)/ /ˈprɪmər/ [countable] (North American English) a book that contains basic instructions初级读本；入门书 The President doesn't need a primer on national security.总统对于国家安全是不需要读入门书的。 /ˈpraɪmə(r)/ /ˈprɪmər/ [countable] (old-fashioned) a book for teaching children how to read, or containing basic facts about a school subject识字课本；启蒙读本词源senses 2 to 3 late Middle English: from medieval Latin primarius (liber) ‘primary (book)’ and primarium (manuale) ‘primary (manual)’.
随便看	hungarys hung back hunger hunger_1 hunger after hunger-after hungered hungerer hunger for hunger-for hungering hungerless hungers hunger strike hunger-strike hungerstrike hunger striker hunger-striker hungerstriker hunger strikers hunger strikes hunger strikes' hunger-strikes hung on hung-out